上段末句讲“新的试验提出对非快速眼动睡眠作用的解释”,根据For example提示,下段是举例说明这一试验与解释的具体内容,故45题选for the purpose和48题选cast light on(使……清楚明白,解释,阐明)才能体现上下文语意的照应。其中上文中的function或The purpose of和fascinating explanations分别为两个答案的信号词。
3)利用固定搭配知识理解文意
英语中,一些固定的句型和短语结构既是学习的一个难点,也是英语知识运用测试的一个重点。英语中的固定搭配形式较多,有名词短语搭配、动词短语结构、介词短语搭配及成语等。这些固定搭配都是语言在长期的发展和演变过程中形成的,是语言的精华。只有在平时学习中认真积累,做题时才能得心应手。本书的附录对考研英语中重要的搭配进行了总结。
例如 2004年第35题
Families have also (experienced) changes these years. More families consist of one parent households or two working parents;(Consequently), children are likely to have less supervision at home (35) was common in the traditional family (structure).
35[A] than[B] that[C] which [D] as
本题答案线索是35题空白处前的less一词。这是比较级less... than的固定结构。因此正确答案是[A] than(比)。
例如 2005年17, 19, 20题
We are not 17of the usual smell or our own house but we18 notice new smells when we visit someone else’s. The brain finds it best to keep smell receptors 19 for unfamiliar and emergency signals 20 the smell of smoke, which might indicate the danger of fire. 17[A] sure[B] sick[C] aware[D] as